Senior Fullstack Engineer — Prague (Hybrid, Contract)

You will be working across a Python/AWS backend and a React frontend, owning features end-to-end — from designing data pipeline transformations to building the analyst-facing specification authoring tool.

What you'll be doing:

• Design and extend the SDTM transformation engine using AWS Step Functions, Lambda, and Databricks
• Build and evolve the GraphQL/AppSync API consumed by analysts to author mapping specifications
• Develop and maintain React + TypeScript frontend features for data review and spec authoring
• Own infrastructure-as-code changes across Terraform service stacks and shared infrastructure
• Participate in code reviews, architecture discussions, and production on-call rotation
• Mentor engineers newer to the stack or clinical data domain

What we're looking for:

• Strong Python proficiency — Lambda Powertools, pytest, clean testable code in a monorepo
• Deep AWS knowledge: Lambda, Step Functions, S3, DynamoDB, IAM
• Hands-on Terraform experience across multi-stack configurations
• Nice to have: GraphQL/AppSync, React + TypeScript, Databricks, CDISC SDTM, or GxP/regulated-industry experience